Temat: nano Copper - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study of Some Optical Properties of Polystyrene - Copper Nanocomposite Films
Autorzy:: Kadhim, Raheem Gaayid
Powiązania:: https://bibliotekanauki.pl/articles/1192701.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: nano Copper
nanocomposites
polystyrene
Opis:: The effect of addition of nano Cu on some optical properties of polystyrene has been studied. For this purpose, many samples have been prepared by adding nano Cu to the polystyrene with different Weight percentages and different thickness. The absorption spectra have been recorded at the wavelength ranges (220-800 nm). The absorption coefficient, extinction coefficient and energy gap of the indirect allowed and forbidden transition have been determined. Results show that the absorption coefficient and extinction coefficient increase and the energy gap of the indirect allowed and forbidden transition decreases with the wt. % content of nano Cu.
Źródło:: World Scientific News; 2016, 30; 14-25
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Green Synthesis of Copper Nanoparticles Using Ocimum sanctum L. (Tulsi) and Piper nigrum L. (Pepper Seed) for Pollution Free Environment
Autorzy:: Nirmala, M.
Kavitha, B.
Nasreen, S.
Kiruthika, S.
Divya, B.
Manochitra, E.
Powiązania:: https://bibliotekanauki.pl/articles/1031782.pdf
Data publikacji:: 2020
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Copper
Copper nano particles
Cu
Diffraction
Green synthesis
Ocimum sanctum
Pepper
Piper nigrum
Tulsi
Opis:: Synthesis of nanoparticles using plant leaf extract is an eco-friendly, non-toxic and cost efficient approach in the field of nanotechnology. In this study, biosynthesis of stable copper nanoparticles were prepared by using Ocimum sanctum and Piper nigrum extract. These biosynthesized Cu nanoparticles were characterized with the help of X-Ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR). The crystalline size of the Copper Nanoparticles prepared from Tulsi extract is little smaller than Copper nanoparticles prepared from Pepper extract. SEM images of Copper nanoparticles showed that the cluster formation, presence of smaller and larger grains. FTIR analysis revealed that the functional groups present in the Copper nanoparticles prepared from both Tulsi and Pepper extracts. Thus, this method can be used for rapid and ecofriendly biosynthesis of stable copper nanoparticles and can be used for catalytic agent, anti-microbial, anti-fungal, anti-biotic, nanosensor, super conducting material, solar cell applications.
Źródło:: World Scientific News; 2020, 150; 105-117
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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